The air compressor is used because the compressed air is stored in the tank by the compressor during the working process. Due to the high pressure, more heat energy is generated. If the temperature cannot be cooled in time, it may cause overheating and cause risks. The air compressor cooler is a machine used for cooling to cool down, which can better maintain the continuous operation of the air compressor. After the air compressor cooler is used for a long time, the calcium, magnesium and other bicarbonate substances in the air compressor cooler water will form scale in it, which will increase the air compressor inlet and exhaust temperatures, the air cannot be cooled to a predetermined temperature, so it is very important to clean the air compressor cooler. The specific chemical method for cleaning the air compressor cooler is to first make a dilute hydrochloric acid solution, add 5-10KG hydrochloric acid to 100KG water, place the dilute hydrochloric acid tank at the bottom of the cooler, and connect a leather tube to the small water pump at the bottom. The water pump and the cleaned cooler channel form a loop circulation. After the water pump is started, use dilute hydrochloric acid solution for circulating cleaning, generally cleaning for about 6 hours. If cleaning in winter, the solution can be heated to 70-80 degrees to speed up the cleaning speed and improve the cleaning effect. After cleaning with dilute hydrochloric acid solution, remove the liquid, then rinse with clean water. In order to prevent acid corrosion, it can be washed with 5% soda solution for 10 minutes and finally rinsed with clean water.

A cooler, portable ice chest, ice box, cool box, chilly bin (in New Zealand), or esky (Australia) is an insulated box used to keep food or drink cool. Ice cubes are most commonly placed in it to help the contents inside stay cool. Ice packs are sometimes used, as they either contain the melting water inside, or have a gel sealed inside that stays cold longer than plain ice (absorbing heat as it changes phase). Coolers are often taken on picnics, and on vacation or holiday. Where summers are hot, they may also be used just for getting cold groceries home from the store, such as keeping ice cream from melting in a hot automobile. Even without adding ice, this can be helpful, particularly if the trip home will be lengthy. Some coolers have built-in cupholders in the lid. They are usually made with interior and exterior shells of plastic, with a hard foam in between. They come in sizes from small personal ones to large family ones with wheels. Disposable ones are made solely from polystyrene foam (such as is a disposable coffee cup) about 2 cm or one inch thick. Most reusable ones have molded-in handles; a few have shoulder straps. The cooler has developed from just a means of keeping beverages cold into a mode of transportation with the ride-on cooler. A thermal bag or cooler bag is very similar in concept, but typically smaller and not rigid.

The function of the engine cooling system is to dissipate part of the heat absorbed by the heated parts in time to ensure that the engine works at the most suitable temperature. The cooling system of the engine cooler can be divided into two categories, one is the water cooling system and the other is the air cooling system. Most car engines are cooled by a water cooling system. Most of the water-cooling systems used in automobile engines use water pumps to force the coolant to circulate in the cooling system, which is generally called a forced-circulation water-cooling system. The cylinder head and cylinder block of the water-cooled engine are cast with a cooling water jacket. The water pump sucks the coolant from the radiator and pressurizes it to the cylinder block water jacket. The coolant absorbs the heat of the cylinder block and the temperature rises, and then flows to the cylinder. Cover the water jacket. After cooling the cylinder head, it flows from the thermostat on the top of the cylinder head to the radiator. Due to the strong suction of the electric fan, the air passes through the radiator at high speed from front to back, so the heated coolant flows through the radiator. The heat is continuously dissipated into the atmosphere to cool the coolant. After the cooled coolant flows to the lower chamber of the radiator, it flows back to the engine under the action of the water pump. This continuous circulation keeps the components working under high temperature conditions constantly cooled.

The generator cooler is the main heat exchange component of the motor and an important product to maintain the operation of the motor, which directly affects the temperature rise, output and life of the motor. All steam turbine generators, hydraulic generators, and AC and DC motors must use motor coolers, which are widely used and play an important role in the national economy and people's livelihood. The air discharge volume of the cooler of a discharge machine is 20M^3/MIN and the cross-sectional area is 0.085M^3, so what is the wind speed? The air volume passing through per second is equal to 20/60=0.33 cubic meters. The cross-sectional area that passes through is equal to 0.085 square meters. So the average wind speed in one second is equal to the ventilation volume divided by the cross-sectional area equal to 0.33/0.085=4 m/s.

A gas generator is a device for generating gas. A gas generator may create gas by a chemical reaction or from a solid or liquid source, when storing a pressurized gas is undesirable or impractical. The term often refers to a device that uses a rocket propellant to generate large quantities of gas. The gas is typically used to drive a turbine rather than to provide thrust as in a rocket engine. Gas generators of this type are used to power turbopumps in rocket engines, and are used by some auxiliary power units to power electrical generators and hydraulic pumps. Another common use of the term is in the industrial gases industry, where gas generators are used to produce gaseous chemicals for sale. For example, the chemical oxygen generator, which delivers breathable oxygen at a controlled rate over a prolonged period. During World War II, portable gas generators that converted coke to producer gas were used to power vehicles as a way of alleviating petrol shortages. Other types include the gas generator cooling in an automobile airbag, which is designed to rapidly produce a specific quantity of inert gas.

A steam generator is a form of low water-content boiler, similar to a flash steam boiler. The usual construction is as a spiral coil of water-tube, arranged as a single, or monotube, coil. Circulation is once-through and pumped under pressure, as a forced-circulation boiler. The narrow-tube construction, without any large-diameter drums or tanks, means that they are safe from the effects of explosion, even if worked at high pressures. The pump flowrate is adjustable, according to the quantity of steam required at that time. The burner output is throttled to maintain a constant working temperature. The burner output required varies according to the quantity of water being evaporated: this can be either adjusted by open-loop control according to the pump throughput, or by a closed-loop control to maintain the measured temperature. They are used as auxiliary boilers on ships. The steam generator cooling is an important part of the steam power plant. Power station boilers, steam turbines and generators are the main engines of thermal power stations, so power station boilers are important equipment for producing electrical energy. Industrial boilers are essential equipment for providing steam required for production and heating in various industrial enterprises. There are many industrial boilers, which consume a lot of fuel. Waste heat boilers that use high-temperature exhaust gas as a heat source in the production process play an important role in energy saving. Marine boilers are installed on various ships, and the steam produced is used to drive steam-powered machinery. As the main equipment of steam locomotives, locomotive boilers still have certain applications. Boilers are subject to high temperature and high pressure, and safety issues are very important. Even a small boiler can have serious consequences once it explodes. Therefore, strict regulations have been formulated for boiler material selection, design calculation, manufacture and inspection.